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用传统的直接称量法监测材料在真空中的损失具有许多严重缺点,它们是:对振动和温度变化不稳定,在空间严格固定的位置。石英微量天秤没有这些缺点,其敏感元件是
The traditional direct weighing method to monitor the loss of material in vacuum has a number of serious drawbacks: unstable vibration and temperature changes in a strictly fixed space position. Quartz micro-scale without these shortcomings, the sensitive element is